I'm trying to learn all of the Naza mode lights - and thought I understood them all.. but yesterday before I took off, while I was waiting for full GPS lock, I noticed 2 different times that I got the fast green flashes. I thought there was only 1 - to indicate home position was set. What was the second set? Unrelated but I just have to share.... This thing is an absolute BLAST to fly - it is extremely confidence inspiring. I had never been able to do "nose in" flight with single rotors or my other quads, but the Phantom is so stable I wasn't the least bit nervous flying figure 8's or hovering in any orientation. I can actually fly this goofy thing! Can't wait for Atlanta Hobby to get the gimbal back in stock (mine's already paid for, just waiting on it to get in).